Tsugai

If all of your family members use chopsticks, there are twice as many sticks as the families. You know chopsticks are usually kept apart, so you have to find right pairs among all of them for each meal.

So something to pair up the chopsticks would be useful.
Tsugai is a chopstick rest made of metal that you can also use as a chopstick bundle when put in the kitchen cabinet.

It makes the chopsticks stay afloat, so it can keep the chopsticks clean.
Inside the back of it there is a magnet, so when it stands, it sticks with another one to support each other. (It stands itself alone of course though.)